LR: All pairwise logratios

In easyCODA: Compositional Data Analysis in Practice

All pairwise logratios

Description

Computation of all pairwise logratios.

Usage

LR(data, ordering=1:ncol(data), weight=TRUE)

Arguments

data	A compositional data frame or matrix
ordering	A permutation of the columns (default: the original ordering)
weight	Logical indicating if varying weights are returned (default:TRUE). If FALSE, unweighted (equal) weights are returned. Alternatively a set of positive weights can be specified.

Details

The function LR computes the complete set of pairwise logratios, in the order [1,2], [1,3], [2,3], [1,4], [2,4], [3,4], etc.

Value

LR	The pairwise logratios as columns of a data matrix
LR.wt	The weights assigned to the respective logratios

Author(s)

Michael Greenacre

References

Aitchison, J. (1986), The Statistical Analysis of Compositional Data, Chapman & Hall.
Greenacre, M. (2018), Compositional Data Analysis in Practice, Chapman & Hall / CRC Press.

See Also

ALR, invALR, CLR, invCLR, LR.VAR

Examples

data(veg)
LR(veg)

easyCODA documentation built on Sept. 11, 2024, 5:33 p.m.